首先，有一个波段的参数均衡器调节频率，增益和带宽。

First, there is one band of parametric eq with adjustable frequency, gain and bandwidth.

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详细研究了光纤参量放大系统中的增益和带宽与各主要参数如光纤长度、色散斜率、非线性系数、泵浦光功率等的关系。

Some parameters such as fiber length, dispersion slope, nonlinearity coefficient, and pump power have important impact on gain and bandwidth in optical fiber amplification system.

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该放大器采用有源电感负载技术和放大器直接耦合技术以提高增益，拓展带宽，降低功耗并保持了良好的噪声性能。

Active inductor loads and direct-coupled technology are employed to increase the gain, broaden the bandwidth, reduce the power dissipation, and keep a tolerable noise performance.

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